EAL Level 2 Engineering Science

EAL Level 2 Engineering Science

1. Which one of the following is the SI unit of mass?

a) Pound (lb)
b) kilogram (kg)
c) gram (g)
d) tonne (t)

2. A voltage drop of 12V appears across a resistor of 24 ohm. Which one of the following gives the current flowing?

a) 2A
b) 0.5A
c) 0.25A
d) 0.4A

3. A force of 2N acts on a mass of 1.5kg. Which one of the following gives the resulting acceleration of the mass?

a) 0.75 m/s2
b) 1.5 m/s2
c) 3 m/s2
d) 1.33 m/s2

4. Which one of the following is the SI unit of elecric charge?

a) Volt (V)
b) Ampere (A)
c) Coulomb (C)
d) Farad (F)

5. When a body is at rest (or in equilibrium), the action and reaction
forces acting on it will:

a) be equal and opposite
b) both be zero
c) produce an acceleration
d) conteract gravity

6. A light alloy beam has a mass of 25kg. Which one of the following gives the weight of the beam? (Take g = 9.81m/s/s).

a) 2.54N
b) 25.N
c) 34.81N
d) 245.25N

7. Which one of the following materials has the greatest density?

a) Aluminium
b) Glass
c) Mild steel
d) Concrete

8. A 'moment' is a froce that

a) produces a turning effect
b) cunteracts friction
c) restores equilibrium
d) resists motion

9. Which one of the following is the same as a temperature of 373K?

a) 100 deg.C
b) 0 deg.C
c) 273 deg.C
d) 100 deg.F

10. Which one of the following materials has the lowest coefficient of linear expansion?

a) Aluminium
b) Brass
c) Copper
d) Invar

11. Heat energy that is transferred in a liquid or gas due to motion of the liquid or gas from a warmer region to a cooler one is referred to as:

a) Conduction
b) Convection
c) Radiation
d) Variation

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